Yes they gave me a set to try at the birds. They work awesome. They are a little tall for 12th cars as they were designed for 10th scale's. But I found no ill effects from using them on my CEFX 12th. The camber was dead on and the toe was dead on too. The only problem is the nuts that hold them on are too long on the non threaded end and wont reach the thread's of the shorter 12th scale axles. I just used my wheel bearings and the normal wheel nut. I think they make a different set of nuts for 12th scale guys.

EA